Study On The Catalytic Cracking Of Waste Plastics And Waste Lubricating Oil For Producing Fuel Oil

The catalytic cracking of waste lubricating oil and waste plastics, the catalyticreforming of cracking gas and the aftertreatment of the liquid fuel oil were studied inthis thesis.Experiment demonstrated that the waste lubricating oil and every kind of wasteplastics have their own special characteristic of catalytic cracking versus temperature.Effect of different temperature and catalysts on the yields of liquid fuel oil, carbonresidue and gas were studied in the thesis. The performance of kinds of catalyst andtheir effect on composition yield and the quantity of gasoline, diesel and heavy oilgenerated by catalytic cracking of waste lubricating oil and waste plastics, werestudied in the thesis, too. Experiment showed that addition of waste lubricating oilcan obviously improve the heat transfer and mass transfer and decrease the residueproduction, and the quality of liquid fuel oil was improved, too.Taken La(NO₃)₃, Al(NO₃)₃ and (NH₂)₂CO as materials, the reforming catalystwith fine Al₂O₃ as carrier and La₂O₃ as main component was prepared byCo-precipitation and microwave dryness. Research demonstrated that, in the course ofcatalytic reforming of the product from the catalytic cracking of waste lubricating oiland waste plastics, with this catalyst used, the yield of gasoline is improved obviously,and what's more, the quality of gasoline was improved with the great increase ofRON.The aftertreatment of the liquid fuel oil which generated by catalytic cracking ofwaste lubricating oil and waste plastics was studied in this thesis. After filtration, ahigh effective technique of complexible solvent extraction combinig alkali lavationwas brought forward. And the Experiment demonstrated that the technique candecrease the fuel oil colour and improve the fuel oil invariability obviously, and candecrease the secondary pollutant, make the fuel oil accord with the national standard.